Automobile bottom plate and automobile

Abstract

The invention provides an automobile bottom plate and an automobile, and relates to the technical field of automobiles, at least part of the automobile bottom plate is arranged to be an observation area, and the observation area corresponds to a pressure release valve of an automobile battery; wherein the observation area is transparent. According to the technical scheme, the observation area is arranged to correspond to the pressure release valve of the automobile battery and is transparent, so that the state of the pressure release valve of the automobile battery can be directly observed from the outside through the observation area, the exhaust condition of the pressure release valve can be conveniently observed in the whole automobile test process, and the test efficiency is improved. And the conditions of the pressure release valve and the surrounding of the pressure release valve can be visually seen without disassembling any part, so that the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and in particular to an automobile floor panel and an automobile. Background Art

[0002] The power battery of a new energy vehicle usually has one or more pressure relief valves. When conducting a thermal diffusion test on a new energy vehicle and inducing thermal runaway on the battery pack, the pressure relief valve will release the pressure in the battery pack to prevent pressure from accumulating in the battery pack and causing other serious accidents. Therefore, when conducting thermal runaway and thermal diffusion tests on the whole vehicle, it is necessary to observe the pressure relief valve, confirm its working status, and determine whether it effectively performs functions such as exhaust and drainage.

[0003] In conventional designs, in order to prevent the pressure relief valve area from being affected by chassis wind pressure, water or gravel during daily driving, the bottom guard plate will generally block the pressure relief valve, which is not conducive to observing the thermal runaway test status. In addition, because the bottom guard plate is an integral part of the vehicle, if the bottom guard plate is removed rashly, it will have unpredictable effects on the test results, and it is impossible to determine the role or risks caused by the bottom guard plate in extreme cases. On the other hand, if the solution of directly arranging cameras for observation is adopted, the jet of high-temperature and high-pressure gas will instantly damage the ordinary camera, making it impossible to effectively capture the test process information, and the camera electronic materials may short-circuit at high temperatures, which may cause the battery pressure relief gas to explode. Summary of the invention

[0004] The main purpose of the present invention is to provide an automobile floor panel and an automobile, aiming to provide an automobile floor panel capable of directly observing an automobile pressure relief valve.

[0005] To achieve the above object, the present invention provides a car floor, at least a portion of which is configured as an observation area to correspond to the pressure relief valve of a car battery; wherein the observation area is transparent.

[0006] In one embodiment, the vehicle floor comprises a guard plate and an observation plate mounted on the guard plate, and the observation plate is transparent to form the observation area.

[0007] In one embodiment, the material of the observation plate includes high temperature resistant modified polycarbonate material.

[0008] In one embodiment, the material of the guard plate is engineering plastic or resin.

[0009] In one embodiment, the melting points of the observation plate and the protection plate are 240-280°C.

[0010] In one embodiment, the observation plate and the guard plate are connected via a screw connection structure, and the screw connection structure is a high-temperature resistant modified organic material; and / or, high-temperature resistant glue is coated between the observation plate and the guard plate.

[0011] In one embodiment, the viewing plate and the guard plate are integrally formed.

[0012] The present invention also proposes a car, comprising a battery assembly and a car floor, wherein the battery assembly comprises a battery body and a pressure relief valve; the car floor is the car floor as described above, and the observation area of ​​the car floor corresponds to the pressure relief valve setting.

[0013] In one embodiment, a pressure relief valve is respectively provided at the front and rear ends of the battery assembly, and two observation areas are correspondingly provided on the vehicle floor, and the two observation areas are respectively provided corresponding to the pressure relief valves.

[0014] In one embodiment, the vehicle floor panel includes a first floor panel and a second floor panel respectively arranged at the front and rear sides of the battery assembly, and the first floor panel and the second floor panel are each provided with an observation area, and the observation areas are respectively arranged corresponding to the pressure relief valves.

[0015] In the technical solution of the present invention, by setting the observation area to correspond to the pressure relief valve of the automobile battery, and setting the observation area to be transparent, the state of the pressure relief valve of the automobile battery can be directly observed from the outside through the observation area, so as to observe the exhaust condition of the pressure relief valve during the whole vehicle test, and the pressure relief valve and its surrounding conditions can be intuitively seen without disassembling any components, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of an embodiment of a vehicle floor provided by the present invention;

[0018] Figure 2 A schematic structural diagram of an embodiment of a vehicle provided by the present invention;

[0019] Figure 3 A schematic structural diagram of another embodiment of a vehicle provided by the present invention;

[0020] Figure 4 The present invention is a schematic structural diagram of another embodiment of the automobile provided by the present invention.

[0021] Description of Figure Numbers

[0022] 100. Automobile; 1. Automobile floor; 11. Guard plate; 11a. First guard plate; 11b. Second guard plate; 12. Observation plate; 2. Battery assembly; 21. Battery body; 22. Pressure relief valve.

[0023] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0025] It should be noted that, in the embodiments, those without specifying specific conditions are carried out according to conventional conditions or conditions recommended by the manufacturer. Those without specifying the manufacturer of reagents or instruments used are conventional products that can be purchased commercially. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes, and "A and / or B" is taken as an example, including schemes A, B, or A and B that meet the same time. In addition, the technical schemes between the various embodiments can be combined with each other, but must be based on the ability of ordinary technicians in the field to achieve. When the combination of the technical schemes is contradictory or cannot be achieved, it should be considered that the combination of such technical schemes does not exist, and is not within the scope of protection required by the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work, all belong to the scope of protection of the present invention.

[0026] The power battery of a new energy vehicle usually has one or more pressure relief valves. When conducting a thermal diffusion test on a new energy vehicle and inducing thermal runaway on the battery pack, the pressure relief valve will release the pressure in the battery pack to prevent pressure from accumulating in the battery pack and causing other serious accidents. Therefore, when conducting thermal runaway and thermal diffusion tests on the whole vehicle, it is necessary to observe the pressure relief valve, confirm its working status, and determine whether it effectively performs functions such as exhaust and drainage.

[0027] In conventional designs, in order to prevent the pressure relief valve area from being affected by chassis wind pressure, water or gravel during daily driving, the bottom guard plate will generally block the pressure relief valve, which is not conducive to observing the thermal runaway test status. In addition, because the bottom guard plate is an integral part of the vehicle, if the bottom guard plate is removed rashly, it will have unpredictable effects on the test results, and it is impossible to determine the role or risks caused by the bottom guard plate in extreme cases. On the other hand, if the solution of directly arranging cameras for observation is adopted, the jet of high-temperature and high-pressure gas will instantly damage the ordinary camera, making it impossible to effectively capture the test process information, and the camera electronic materials may short-circuit at high temperatures, which may cause the battery pressure relief gas to explode.

[0028] In view of this, see Figures 1 to 4 The present invention proposes a car floor 1, wherein at least a portion of the car floor 1 is configured as an observation area to correspond to a pressure relief valve 22 of a car battery; wherein the observation area is transparent.

[0029] In the technical solution of the present invention, by setting the observation area to correspond to the pressure relief valve of the automobile battery, and setting the observation area to be transparent, the state of the pressure relief valve of the automobile battery can be directly observed from the outside through the observation area, so as to observe the exhaust condition of the pressure relief valve during the whole vehicle test, and the pressure relief valve and its surrounding conditions can be intuitively seen without disassembling any components, thereby improving the detection efficiency.

[0030] It should be noted that the automobile floor panel 1 may be integrally formed, or the floor panel of the observation area may be assembled and formed with other parts, which is not limited here, as long as the observation area can be formed.

[0031] In one embodiment, the vehicle floor 1 includes a guard plate 11 and an observation plate 12 installed on the guard plate 11, and the observation plate 12 is transparent to form the observation area.

[0032] In the technical solution of the present invention, by providing the guard plate 11, it is possible to protect and support the internal structure of the automobile, and is used to resist external impacts and protect internal components; by providing the observation plate 12 and making the observation plate 12 transparent, it is convenient to observe the internal structure of the automobile through the observation plate 12, especially the pressure relief valve of the automobile battery, so that the exhaust condition of the pressure relief valve can be observed, and it is possible to judge whether the pressure relief valve effectively performs its exhaust, drainage and other functions.

[0033] It should be noted that the guard plate 11 can be made of metal or plastic, without limitation, as long as it can withstand external impact and protect internal components; the observation plate 12 can be made of glass or resin, without limitation, as long as the internal components including the pressure relief valve can be observed through the observation plate 12.

[0034] In one embodiment, the material of the observation plate 12 includes high temperature resistant modified polycarbonate material.

[0035] In the technical solution of the present invention, by adopting high-temperature resistant modified polycarbonate (PC) material as the material of the observation plate 12, the heat resistance of the observation plate 12 can be improved, so that the observation plate 12 can withstand the high-temperature fluid sprayed out during the operation of the pressure relief valve, thereby maintaining the structural stability of the automobile floor 1, and the degree of deformation of the observation plate 12 due to high temperature is reduced, so that the working status of the pressure relief valve can be continuously and clearly observed.

[0036] It should be noted that, in the high-temperature resistant modified polycarbonate material, high temperature resistance means that the high-temperature resistant modified polycarbonate material can withstand the high-temperature gas when the pressure relief valve is releasing pressure, wherein the temperature of the high-temperature gas is between 90 and 150°C; polycarbonate material, commonly known as PC material, is a high-molecular polymer containing a carbonate group in the molecular chain, and can be divided into aliphatic, aromatic, aliphatic-aromatic and other types according to the structure of the ester group, such as polyethylene carbonate, polytrimethylene carbonate and its copolymers; high-temperature resistant modification is achieved by adding additives such as flame retardants or heat stabilizers during the synthesis process, thereby improving the high-temperature resistance of the PC material.

[0037] In one embodiment, the material of the guard plate 11 is engineering plastic or resin.

[0038] In the technical solution of the present invention, by using engineering plastics or resins as the material of the guard plate 11, the mechanical strength and corrosion resistance of the guard plate 11 can be improved, thereby improving the resistance of the automobile floor 1 to the road environment and reducing the erosion of water vapor, salt and road chemicals; at the same time, compared with metal materials, engineering plastics or resins have a lower density. Using engineering plastics or resins as the material of the guard plate 11 can reduce the weight of the guard plate 11, which helps to reduce the overall weight of the car.

[0039] It should be noted that the guard plate 11 can be made of a transparent material or a non-transparent material, and there is no limitation here, as long as the structure of the guard plate 11 is sufficient to support the internal structure of the car and play a protective role.

[0040] In one embodiment, the melting points of the observation plate 12 and the protection plate 11 are 240-280°C.

[0041] In the technical solution of the present invention, the melting points of the observation plate 12 and the guard plate 11 are set at 240-280°C, so that the physical properties of the observation plate 12 and the guard plate 11 are similar, thereby improving the consistency of the automobile floor 1, and further ensuring that the vehicle test results of the automobile floor 1 are similar to the actual vehicle use. Specifically, in some embodiments of the present invention, the material of the guard plate 11 is engineering plastic or resin, and the material of the observation plate 12 is high temperature resistant modified PC material. Both are polymer materials with similar melting points, which further reduces the difference between the test results and the actual vehicle use, and at the same time ensures that the test conditions of the pressure relief valve can be directly observed.

[0042] In the vehicle thermal runaway test scenario, the bottom guard plate 11 that blocks the pressure relief valve port needs to be modified into a transparent cover, so the material properties of the bottom guard plate 11 are first collected. The bottom guard plate 11 of new energy vehicles uses resin or engineering plastics (PVE, PVC, etc.), with a melting point of about 260°C, has good heat resistance and impact resistance, and is not prone to resonant noise. From the perspective of experimental observation, its disadvantage is that this type of material is not transparent.

[0043] By screening the material properties, transparent materials are selected based on the main impacts involved in the test. Taking the thermal runaway test as an example, the focus of transparent materials is similar temperature resistance, followed by flame retardancy. According to the melting point and flame retardancy of the bottom guard plate 11 material, high temperature resistant modified PC material can be selected, and its corresponding melting point is around 240°C. At the same time, the flame retardancy of PC material also meets the requirements.

[0044] In one embodiment, the observation plate 12 and the protective plate 11 are connected via a screw connection structure, and the screw connection structure is a high temperature resistant modified organic material.

[0045] By adopting a screw connection structure, the observation plate 12 and the guard plate 11 can be stably connected into a whole, so as to avoid that when the thermal runaway test of the whole vehicle triggers the working threshold of the pressure relief valve, the high-temperature jet gas of the pressure relief valve will break the connection between the two materials of the bottom guard plate 11, and the heat flow guidance at the bottom of the vehicle will be changed, thereby affecting the test results; by adopting the screw connection structure made of high-temperature resistant modified organic material and fastening it with screws of the same material with similar performance, the material consistency of the automobile bottom plate 1 can be ensured, so that the results of the whole vehicle experiment are close to the actual vehicle usage, thereby improving the accuracy of the test results.

[0046] It should be noted that high temperature resistance means that the high temperature resistant modified polycarbonate material can withstand the high temperature gas when the pressure relief valve releases pressure, wherein the temperature of the high temperature gas is between 90 and 150°C; specifically, in some embodiments of the present invention, the material of the screw structure is a thermosetting carbon fiber composite material.

[0047] In one embodiment, high temperature resistant glue is applied between the observation plate 12 and the guard plate 11 .

[0048] It should be noted that high temperature resistance means that the high temperature resistant modified polycarbonate material can withstand the high temperature gas when the pressure relief valve releases pressure, wherein the temperature of the high temperature gas is between 90 and 150°C; in some embodiments of the present invention, one of silicone glue, phenolic resin glue, urea-formaldehyde resin glue, epoxy resin glue and polyimide glue is coated between the observation plate 12 and the guard plate 11, so as to bond the guard plate 11 and the transparent plate into shape; in another embodiment of the present invention, the observation plate 12 and the guard plate 11 are connected by a screw structure and are coated with high temperature resistant glue, so as to further ensure the material consistency of the automobile floor 1, thereby improving the accuracy of the test results.

[0049] In one embodiment, the observation plate 12 and the guard plate 11 are integrally formed.

[0050] In the technical solution of the present invention, the observation plate 12 and the guard plate 11 are formed in one piece to eliminate the assembly steps, while reducing the seams and connection points, improving the strength and sealing of the entire bottom plate structure, further reducing the difference between the whole vehicle test and the actual vehicle use, thereby improving the reliability of the test results.

[0051] The present invention also proposes a car 100, including a battery assembly 2 and a car floor 1, wherein the battery assembly 2 includes a battery body 21 and a pressure relief valve 22; the car floor 1 is the car floor 1 as mentioned above, and the observation area of ​​the car floor 1 is set corresponding to the pressure relief valve 22.

[0052] In the technical solution of the present invention, Figure 2 As shown, by setting the observation area of ​​the automobile floor 1 corresponding to the pressure relief valve 22, the working status of the pressure relief valve 22 can be observed directly through the observation area, so as to monitor in real time whether the pressure relief valve 22 is normally performing the exhaust or liquid discharge function, and the working status of the pressure relief valve 22 can be directly checked through the transparent observation area without disassembling the floor or other components, thereby reducing maintenance costs and time consumption.

[0053] In one embodiment, a pressure relief valve 22 is respectively provided at the front and rear ends of the battery assembly 2 , and the vehicle floor 1 is correspondingly provided with two observation areas, and the two observation areas are respectively provided corresponding to the pressure relief valve 22 .

[0054] In the technical solution of the present invention, Figure 3As shown, by respectively providing a pressure relief valve 22 at the front and rear ends of the battery assembly 2 and correspondingly providing the observation area, the working status of the pressure relief valve 22 at different positions can be observed, further fitting the actual working status of the whole vehicle, and improving the reliability of the test.

[0055] In one embodiment, the vehicle floor 1 includes a first floor 11a and a second floor 11b respectively disposed at the front and rear sides of the battery assembly 2, and the first floor 11a and the second floor 11b are each provided with an observation area, and the observation areas are respectively disposed corresponding to the pressure relief valves 22.

[0056] In the technical solution of the present invention, Figure 4 As shown, by setting up two bottom plates, the positions of the first bottom plate 11a and the second bottom plate 11b can be adjusted according to the shape of the battery body 21 and the position of the pressure relief valve 22, and the positions of the observation areas of the first bottom plate 11a and the second bottom plate 11b can be adjusted, so that the status of the pressure relief valve 22 at both ends of the battery assembly 2 can be monitored in real time. By continuously monitoring the status of the pressure relief valve 22, more real and reliable test data can be obtained, providing a solid foundation for subsequent analysis. By discovering problems in time during the test phase, the number of test interruptions caused by faults can be reduced, the resources and time costs required for the test can be reduced, and the simplified design also helps to reduce the investment cost of the test equipment.

[0057] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A car floor panel, characterized in that: At least a portion of the vehicle floor is configured as an observation area to correspond to the pressure relief valve configuration of the vehicle battery; Wherein, the observation area is transparent.

2. The vehicle floor panel according to claim 1, characterized in that: The automobile bottom plate comprises a guard plate and an observation plate installed on the guard plate, and the observation plate is transparent to form the observation area.

3. The vehicle floor panel according to claim 2, characterized in that: The material of the observation plate includes high temperature resistant modified polycarbonate material.

4. The automobile floor panel according to claim 2, characterized in that: The material of the guard plate is engineering plastic or resin.

5. The automobile floor panel according to claim 2, characterized in that: The melting points of the observation plate and the guard plate are 240-280°C.

6. The automobile floor panel according to claim 2, characterized in that: The observation plate and the guard plate are connected by a screw connection structure, and the screw connection structure is a high temperature resistant modified organic material; and / or, High temperature resistant glue is coated between the observation plate and the guard plate.

7. The automobile floor panel according to claim 2, characterized in that: The observation plate and the guard plate are integrally formed.

8. A car, characterized in that: include: A battery assembly, including a battery body and a pressure relief valve; The vehicle floor panel is the vehicle floor panel as claimed in any one of claims 1 to 7, wherein the observation area of ​​the vehicle floor panel corresponds to the pressure relief valve.

9. The automobile according to claim 8, characterized in that A pressure relief valve is respectively arranged at the front and rear ends of the battery assembly, and two observation areas are correspondingly arranged on the vehicle floor, and the two observation areas are respectively arranged corresponding to the pressure relief valve.

10. The automobile according to claim 9, characterized in that The vehicle floor panel includes a first floor panel and a second floor panel respectively arranged at the front and rear sides of the battery assembly. The first floor panel and the second floor panel are each provided with an observation area, and the observation areas are respectively arranged corresponding to the pressure relief valves.

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